Category: Science

In a multicat household, it’s common to see one cat licking another. When some people see this behavior, known as allogrooming (“allo” means “another individual”)

The constellation Orion is framed by two Perseid meteors on Aug. 12, 2018, in Cedar Breaks National Monument, Utah.

Scientists melted diamonds with a powerful laser to take some of the most precise measurements of the mineral’s elusive melting point — and found that

Artificial intelligence (AI) algorithms that hunt for cancer may do a better job when they approach the analysis as if they were a human pathologist

The Celestron StarSense Explorer DX 130AZ is a 5.1-inch (130mm) f/5 Newtonian reflector, one of many 130mm f/5 reflectors offered by Celestron. The DX 130AZ

Given that it’s the closest planet to the sun, Mercury seems like it should be the hottest planet in our solar system. However, at a

Scientists are working closely with art historians to uncover scientific documentation in historic paintings.

The anniversaries come and go, but the physical and mental health of workers and survivors is still being affected by September 11, 2001.

The largest hoard of Viking Age silver ever found in Finland — which contains almost 10 pounds (4.5 kilograms) of coins and jewelry — has

Many people are familiar with melatonin, a hormone that helps ready the body for sleep. But there’s another, lesser-known chemical in the brain, called orexin

Galaxies are like cosmic gems, each with characteristics including size and shape that make them distinct. A gallery from NASA’s Chandra X-ray Observatory and other

For thousands and sometimes millions of years, marine plankton all over the world built their spiral shells in one direction. Then, suddenly, the spirals switched

An exceptionally well-preserved fossilized molar belonging to an adult Pacific mastodon has surfaced in a nature preserve near San Francisco. Upon first glance, the ancient

Weakening Atlantic Ocean currents could cripple agriculture in some of the world’s major breadbaskets, threatening global food security and raising the price of basic commodities